[go: up one dir, main page]

EP2117821B1 - Method for the production of web sections from flexible web material, and for the production of packaging containers - Google Patents

Method for the production of web sections from flexible web material, and for the production of packaging containers Download PDF

Info

Publication number
EP2117821B1
EP2117821B1 EP08700302A EP08700302A EP2117821B1 EP 2117821 B1 EP2117821 B1 EP 2117821B1 EP 08700302 A EP08700302 A EP 08700302A EP 08700302 A EP08700302 A EP 08700302A EP 2117821 B1 EP2117821 B1 EP 2117821B1
Authority
EP
European Patent Office
Prior art keywords
web
web material
sections
tear
laser beam
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP08700302A
Other languages
German (de)
French (fr)
Other versions
EP2117821A1 (en
Inventor
Peter Skopek
Herbert Fürst
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Starlinger and Co GmbH
Original Assignee
Starlinger and Co GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=39345264&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP2117821(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Starlinger and Co GmbH filed Critical Starlinger and Co GmbH
Publication of EP2117821A1 publication Critical patent/EP2117821A1/en
Application granted granted Critical
Publication of EP2117821B1 publication Critical patent/EP2117821B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C59/00—Surface shaping of articles, e.g. embossing; Apparatus therefor
    • B29C59/007—Forming single grooves or ribs, e.g. tear lines, weak spots
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2791/00—Shaping characteristics in general
    • B29C2791/004—Shaping under special conditions
    • B29C2791/009—Using laser
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2155/00—Flexible containers made from webs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2155/00—Flexible containers made from webs
    • B31B2155/001—Flexible containers made from webs by folding webs longitudinally
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2155/00—Flexible containers made from webs
    • B31B2155/001—Flexible containers made from webs by folding webs longitudinally
    • B31B2155/0012—Flexible containers made from webs by folding webs longitudinally having their openings facing in the direction of movement
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2160/00—Shape of flexible containers
    • B31B2160/10—Shape of flexible containers rectangular and flat, i.e. without structural provision for thickness of contents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2160/00—Shape of flexible containers
    • B31B2160/10—Shape of flexible containers rectangular and flat, i.e. without structural provision for thickness of contents
    • B31B2160/102—Shape of flexible containers rectangular and flat, i.e. without structural provision for thickness of contents obtained from essentially rectangular sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B70/00—Making flexible containers, e.g. envelopes or bags
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B70/00—Making flexible containers, e.g. envelopes or bags
    • B31B70/14—Cutting, e.g. perforating, punching, slitting or trimming
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B70/00—Making flexible containers, e.g. envelopes or bags
    • B31B70/14—Cutting, e.g. perforating, punching, slitting or trimming
    • B31B70/16—Cutting webs
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T225/00—Severing by tearing or breaking
    • Y10T225/10—Methods
    • Y10T225/12—With preliminary weakening

Definitions

  • the invention relates to a method for producing web sections from a flexible web material, wherein the web material is provided at the distance of the length of the web sections to be formed with tear lines that weaken the web material, but do not cause complete separation of the web sections from the web material and the web sections along the tear lines be separated by tearing off the web material.
  • the invention further relates to a method for producing packaging containers using web sections produced according to the invention, an important aspect of the invention being related to the production of side-folding containers, in particular gusseted bags.
  • the known device for producing a multi-layered hose of paper webs provided at equal intervals with transverse perforations, from which tube sections are torn off for bag production comprises in one Machine frame mounted, attached to a rotating shaft perforator, which provide the paper webs with transverse perforations, wherein the radial distance of the perforator is changeable to the shaft for format adjustment. Furthermore, in the machine frame provided with cross-adhesive strips and cooperating with Klebsttiffciteds sexualen cross-lock cylinder are stored. With a longitudinal adhesive roll, the overlapping edges of the paper webs are provided with an adhesive before they are turned into tubes by guide rollers. On the rotating shaft four supports are arranged at equal angular intervals for selectively attachable to this perforating, having means for adjusting their radial distance from the shaft.
  • the present invention solves the aforementioned problems of the prior art by a method for producing web portions of a flexible web material, which is a fabric of stretched plastic tape, having the features of claim 1.
  • a method for producing web portions of a flexible web material which is a fabric of stretched plastic tape, having the features of claim 1.
  • a laser beam is in the position in a fabric of plastic tape to cut, perforate or score with a defined penetration depth, although due to the at least partial superposition of the ribbons in the fabric, the thickness of the sheet material varies.
  • Another advantage is that lasers are very low maintenance and almost wear-free.
  • the fabric is made of single or multi-layer plastic tapes of PP, PE, or PET, wherein the plastic tapes are stretched before weaving mostly to multiply their strength.
  • the inventive method it is - in contrast to the prior art - possible to form the tear lines as perforation lines or lines of weakness or a combination of perforation and weakening lines, whereby an excellent adaptation of the tearable to be processed web materials is created.
  • the document DE 4122273 A1 discloses a method for laser cutting for continuously moving strips of web or sheet.
  • laser continuous or perforated transversal (partial) sections are produced in the web or flat material.
  • the attachment of lines of weakness is not disclosed.
  • the web sections are separated by tearing from the web material.
  • the document does not contain any material information regarding the web or flat material. From the drawing only shows that the web material is single-layered.
  • the invention is eminently applicable to web materials comprising a web of plastic tape bonded to at least one additional layer of material, since the cutting performance of the laser can be very well adapted to a wide variety of material combinations.
  • the additional layer of material is a plastic layer, such as e.g. an OPP film that is bonded to the fabric.
  • the additional material layer is a coating of plastic material applied to the plastic tapes of the fabric.
  • the web material is a composite material of an optionally coated web of plastic tape and at least one other composite component selected from plastic film, metal foil, metallized plastic film, nonwoven, special adhesive layers, and / or paper.
  • Preferred materials include single or multi-layer plastic tapes made of PP, PE, or PET, wherein the fabrics produced from these plastic tapes can be provided with single or multi-layer coating of PP, PE, or special adhesive layers.
  • the outer layers of such a composite can also be provided with an external pressure or counter pressure.
  • a particular advantage of the invention is that it is also applicable to tubular sheet material.
  • it is provided to subject the web material of both opposite outer surfaces of a laser beam machining.
  • the laser beam is guided through a scanner unit along the predetermined tear line, wherein in tubular web material laser sources and scanner units can be arranged at the top and at the bottom of the tube web.
  • the laser energy (more precisely: the energy density at the point of impact on the web material) according to the intended penetration depths into the web material is changed.
  • the invention enables the production of the tear line while continuously moving the web material by tracking the laser beam to compensate for the longitudinal movement of the web material, optionally adjusting the laser energy to the distance between the laser source and point of impact on the web material at the point of impact always to provide the required laser energy. It is possible to keep the energy density at the point of impact constant as the beam expands by adjusting the laser power to the distance between the laser source and the web material.
  • the power of the laser source is controlled in dependence on the relative speed of the laser beam with respect to the web material, or that the relative speed of the laser beam is controlled with respect to the web material.
  • the energy introduced by the laser beam into the web material is determined per unit length of the tear line.
  • the method according to the invention for producing web sections from a flexible web material is outstandingly suitable for use in a method for producing packaging containers, in particular gusseted packages, wherein the web sections are torn from the web material after the production of the tear line in the web material by means of a laser.
  • a method for producing packaging containers in particular gusseted packages, wherein the web sections are torn from the web material after the production of the tear line in the web material by means of a laser.
  • To produce a bottom or a top surface at least one end region of the web section is folded over onto the web section body and the folded-over end region is fastened to the web section body by gluing or welding. The folding can be done once or several times.
  • the web sections are formed into a tube lengthwise prior to tearing, such that the longitudinal edges overlap, which are then bonded together, particularly glued or welded, to create a longitudinal seam.
  • At least one longitudinal fold in the web sections is formed, preferably before the web sections are torn off the web material.
  • the flexible web material is fed by conventional means of transport, for example roller pairs (not shown) in the longitudinal direction (arrow A) to a perforating station.
  • the sheet material 1 is tubular in this embodiment, wherein it is folded flat, so that an upper (1a) and a lower (1b) material web are superimposed.
  • the web material 1 comprises a fabric made of plastic tapes, which preferably consist of PP, PE, or PET and were expediently stretched before weaving.
  • the plastic tapes can be formed one or more layers.
  • the fabric may be connected to at least one additional layer of material.
  • the additional material layer is a single-layer or multi-layer plastic layer, in particular made of PP, PE or an OPP film, or comprises special adhesive layers.
  • the additional material layer is a single-layer or multi-layer coating of plastic material, which is applied to the plastic tapes of the fabric.
  • the web material is a composite material of an optionally coated fabric of plastic tape and at least one other composite component selected from plastic film, metal foil, metallized plastic film, nonwoven fabric, special adhesive layers and / or paper.
  • the outer layers can also be provided with an external pressure or counter pressure.
  • the perforating station to which the web material 1 - is supplied, comprises two laser cutting units 7, each with a laser source 4 for generating a laser beam 6 and a scanner 5 for deflecting the laser beam 6.
  • a first laser cutting unit 7 is arranged above the tubular web material 1, with its Laser beam is directed to the outer surface of the upper material web 1a.
  • the second laser cutting unit 7 is disposed below the tubular sheet 1, with its laser beam being directed to the outer surface of the lower sheet 1b.
  • the two laser cutting units 7 have the task of the web material 1 at a distance of length L (see Fig. 2 ) to be formed by forming web sections 2 with tear-off lines 3a, 3b, which indeed weaken the web material 1, but no complete separation of the web sections 2 from the web material 1 bring in.
  • the tear lines 3a, 3b and track sections 2 produced in the web material 1 are in Fig. 2 shown in plan view.
  • the two laser cutting units 7 operate independently of each other, wherein the energy of the respective laser beam 6 is set so that it cuts a tear line 3a, 3b only in its associated web 1a or 1b, but not damage the other web 1b or 1a.
  • the tear lines are from the laser beam 6 as perforation lines 3a-1 (see Fig. 4 ) or weakening lines 3a-2 (see Fig. 5 ) or as a combination of perforation and weakening lines 3a-3 (see Fig. 6 ) educated.
  • the web sections 2 can be torn off from the web material 1 in a known manner and further processed.
  • the tear-off lines 3a, 3b can have very different contours, in particular be multi-stepped.
  • the laser beam 6 is guided by the scanner 5 along the predetermined contour of the tear-off line by means of software, wherein this contour is easily changeable and the method according to the invention thus has great variability.
  • the invention it is also possible by the invention to control and change the energy of the laser beam as it is guided along the predetermined tear line, e.g. to produce a combination of perforation and weakening lines, or to keep the energy of the laser beam constant despite varying distance between laser source 4 and point of impingement of the laser beam 6 on the material web 1a, 1b.
  • An additional advantage of the invention is that the web material 1 can be continuously moved along the direction A, while the tear-off lines 3a, 3b are cut by the laser beam 6.
  • the laser beam 6 of the movement of the web material is tracked so that the longitudinal movement (A) of the web material 1 is compensated.
  • the laser energy can be adapted to the respective distance between the laser source 6 and the point of impact of the laser beam 6 on the web material 1.
  • tear-off lines 13 can also be formed in a flat web material 11 by means of the laser cutting according to the invention in order to produce web sections 12, as in FIG Fig. 3 is shown in plan view.
  • flat sheet material 11 only one laser cutting unit 7 is required. It should be pointed out that, depending on the contour of the tear-off lines 3a, 3b, even with tubular sheet material 1 with a laser cutting unit 7, it may be the case that it is found.
  • At least one longitudinal fold 8 can be formed in the web sections 2, 12 in the produced material hose, preferably before tearing off the web sections 2, 12 from the web material 1, 11.
  • Fig. 7 shows the application of in Fig. 6 method described (weakening plus perforated sections) for a flat web, which consists of a composite of plastic ribbon fabric 9 and a film 10, for example plastic film, in particular OPP film, or metal foil or metallized plastic film.
  • the laser beam impinges on the fabric side (which later forms the inside of the package), severing the fabric 9 for the most part, but only perforates the remaining film 10 in a few places (preferably at the locations which run longitudinally to the web direction).
  • the web can be torn off cleanly at the perforation lines later.
  • Fig. 8 shows the application of in Fig. 4 illustrated perforation for a tubular web of a composite of plastic ribbon fabric 9 and film 10.
  • the laser beam on the film side (later the outside of a produced therefrom packaging) on and cuts through the train sections in full.
  • the remaining webs must be narrow and possibly also, as in Fig. 6 shown, weakened (scratched), so that the hose sections can be separated later clean. Points that run longitudinally to the web direction must be completely severed in any case and must have no webs.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Making Paper Articles (AREA)
  • Wrappers (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)
  • Laminated Bodies (AREA)
  • Containers And Plastic Fillers For Packaging (AREA)
  • Bag Frames (AREA)
  • Laser Beam Processing (AREA)

Abstract

A process produces web sections from a flexible web material. The flexible web material is provided with tear-off lines at the distance of the length (L) of the web sections to be formed, which tear-off lines weaken the web material but do not bring about a complete separation of the web sections from the web material. The web sections are separated from the web material along the tear-off lines by tearing. The web material comprises a fabric made of small stretched plastic bands, and the tear-off lines are produced by laser beam processing.

Description

Die Erfindung betrifft ein Verfahren zum Herstellen von Bahnabschnitten aus einem flexiblen Bahnmaterial, wobei das Bahnmaterial im Abstand der Länge der zu formenden Bahnabschnitte mit Abrisslinien versehen wird, die das Bahnmaterial schwächen, aber keine vollständige Trennung der Bahnabschnitte vom Bahnmaterial herbeiführen und die Bahnabschnitte entlang der Abrisslinien durch Abreißen vom Bahnmaterial getrennt werden.The invention relates to a method for producing web sections from a flexible web material, wherein the web material is provided at the distance of the length of the web sections to be formed with tear lines that weaken the web material, but do not cause complete separation of the web sections from the web material and the web sections along the tear lines be separated by tearing off the web material.

Die Erfindung betrifft weiters ein Verfahren zum Herstellen von Verpackungsbehältern unter Verwendung von erfindungsgemäß hergestellten Bahnabschnitten, wobei ein wichtiger Aspekt der Erfindung die Herstellung von Seitenfaltenbehältern, insbesondere Seitenfaltensäcken, betrifft.The invention further relates to a method for producing packaging containers using web sections produced according to the invention, an important aspect of the invention being related to the production of side-folding containers, in particular gusseted bags.

Die Herstellung von Seitenfaltenverpackungen aus Papier ist seit vielen Jahrzehnten bekannt. In der Praxis werden solche Verpackungen nach folgendem Verfahren hergestellt:

  • Eine flache Papierbahn wird mit geraden oder gestuften Perforationslinien im Abstand der späteren Abschnittslänge versehen.
  • Die flache Bahn wird zu einem Schlauch geformt und längs verklebt.
  • Anschließend werden die Schlauchabschnitte durch Abreißen entlang der Perforationslinien getrennt.
  • Ein Endbereich des abgerissenen Schlauchabschnitts wird zu einem Boden geformt und verklebt.
The production of gusseted paper packaging has been known for many decades. In practice, such packages are made according to the following procedure:
  • A flat paper web is provided with straight or stepped perforation lines at a distance of the later section length.
  • The flat web is formed into a tube and glued longitudinally.
  • Subsequently, the tube sections are separated by tearing along the perforation lines.
  • An end portion of the torn-off tube portion is formed into a bottom and adhered.

Die Konstruktion einer "pinch bottom-Verpackung" ist z.B. aus der US 4008850 bekannt, wobei in diesem Dokument auch vorgeschlagen wird, kunststoffbeschichtetes Papier für das Bahnmaterial zu verwenden und Kunststoffbeschichtungsflächen zu verkleben.The construction of a "pinch bottom package" is eg from the US 4008850 It is also known in this document to use plastic-coated paper for the web material and to bond plastic coating surfaces.

Eine Vorrichtung zur Herstellung von mehrlagigen Papiersäcken, die Schlauchabschnitte mit gestaffelter Anordnung der einzelnen Papierlagen umfassen, ist aus dem Dokument EP 664208 bekannt. Um unterschiedliche Formate der Papiersäcke herstellen zu können, weisen die dafür verwendeten "Schlauchmaschinen" eine Veränderbarkeit der die Schlauchabschnittlängen bestimmenden Abstände der Querperforationen in den einzelnen Papierlagen auf. Auch die Abstände der quer verlaufenden Querklebestreifen sind entsprechend anpassbar. Die bekannte Vorrichtung zum Herstellen eines mehrlagigen Schlauches aus in gleichen Abständen mit Querperforationen versehenen Papierbahnen, von dem zur Sackherstellung Schlauchabschnitte abgerissen werden, umfasst in einem Maschinengestell gelagerte, an einer rotierenden Welle befestigte Perforiermesser, die die Papierbahnen mit Querperforationen versehen, wobei der radiale Abstand der Perforiermesser zu der Welle zur Formateinstellung veränderbar ist. Weiters sind im Maschinengestell mit Querklebeleisten versehene und mit Klebsttiffauftragseinrichtungen zusammenwirkende Querklebezylinder gelagert. Mit einer Längskleberolle werden die einander überlappenden Ränder der Papierbahnen, bevor sie durch Leitrollen zu Schläuchen umgeschlagen werden, mit einem Klebstoffauftrag versehen. An der rotierenden Welle sind in gleichen Winkelabständen vier Träger für wahlweise an diesen befestigbare Perforiermesser angeordnet, die Einrichtungen zur Verstellung ihres radialen Abstandes von der Welle besitzen.An apparatus for producing multi-layered paper sacks comprising staggered tube sections of individual paper layers is disclosed in the document EP 664208 known. In order to be able to produce different formats of the paper sacks, the "tube machines" used for this purpose have a changeability of the distances of the transverse perforations in the individual paper layers which determine the tube section lengths. The distances between the transverse cross-adhesive strips are also adaptable. The known device for producing a multi-layered hose of paper webs provided at equal intervals with transverse perforations, from which tube sections are torn off for bag production, comprises in one Machine frame mounted, attached to a rotating shaft perforator, which provide the paper webs with transverse perforations, wherein the radial distance of the perforator is changeable to the shaft for format adjustment. Furthermore, in the machine frame provided with cross-adhesive strips and cooperating with Klebsttiffauftragseinrichtungen cross-lock cylinder are stored. With a longitudinal adhesive roll, the overlapping edges of the paper webs are provided with an adhesive before they are turned into tubes by guide rollers. On the rotating shaft four supports are arranged at equal angular intervals for selectively attachable to this perforating, having means for adjusting their radial distance from the shaft.

Die Anbringung der Perforationslinien an Papiersäcken ist wenig problematisch, da Papier leicht zu schneiden ist. Im Gegensatz dazu stellt jedoch bei der Herstellung von Seitenfaltenverpackungen aus Kunststoffgeweben oder ihren Verbunden die Anbringung der Perforation eine große Herausforderung dar, da bei Kunststoffgeweben mit ihren übereinander liegenden Bändchen das Schneiden problematisch ist. Es sind bisher z.B. teure Stanzwerkzeuge erforderlich, die wenig flexibel sind und verschleißen. Von dieser Problematik sind Gewebe aus verstreckten Kunststoffbändchen auch dann betroffen, wenn sie mit zumindest einer zusätzlichen Materialschicht verbunden sind, wobei es sich um eine Beschichtung der Kunststoffbändchen oder des Gewebes oder um Verbunde des Gewebes mit anderen Materialien handelt. Gewebe und ihre Verbunde werden häufig als schlauchförmige Bahnen hergestellt. Es wäre auch wünschenswert ein Verfahren zu finden, mit dem eine versetzte Perforation direkt an diesen schlauchförmigen Bahnen angebracht werden kann. Ein Verfahren zum Herstellen von Bahnabschnitten aus einem flexiblen Bahnmaterial, wobei Abrisslinien mittels Laserstrahlbearbeitung erzeugt werden ist aus dem Dokument GB-A-2246092 bekannt.Attaching the perforation lines to paper bags is not very problematic because paper is easy to cut. In contrast, in the production of gussets made of plastic fabrics or their composites, the attachment of the perforation poses a great challenge, since in plastic fabrics with their superimposed ribbons cutting is problematic. So far, for example, expensive punching tools are required, which are less flexible and wear. Tissue of stretched plastic tapes are also affected by this problem if they are connected to at least one additional layer of material, which is a coating of the plastic tapes or the fabric or composites of the fabric with other materials. Fabrics and their composites are often made as tubular webs. It would also be desirable to find a method by which an offset perforation can be applied directly to these tubular webs. A method for producing web portions from a flexible web material wherein tear lines are produced by laser beam machining is known from the document GB-A-2246092 known.

Die vorliegende Erfindung löst die genannten Probleme des Standes der Technik durch ein Verfahren zum Herstellen von Bahnabschnitten aus einem flexiblen Bahnmaterial, das ein Gewebe aus verstreckten Kunststoffbändchen ist, mit den Merkmalen des Anspruchs 1. Mit einem Laserstrahl ist man in der Lage ein Gewebe aus Kunststoffbändchen zu schneiden, zu perforieren oder mit einer definierten Eindringtiefe zu ritzen, obwohl aufgrund der zumindest teilweisen Übereinander-Anordnung der Bändchen in dem Gewebe die Dicke des Bahnmaterials variiert. Ein weiterer Vorteil ist, dass Laser sehr wartungsarm und nahezu verschleißfrei sind. Vorzugsweise ist das Gewebe aus ein- oder mehrschichtigen Kunststoffbändchen aus PP, PE, oder PET hergestellt, wobei die Kunststoffbändchen vor dem Weben zumeist verstreckt werden, um ihre Festigkeit zu vervielfachen.The present invention solves the aforementioned problems of the prior art by a method for producing web portions of a flexible web material, which is a fabric of stretched plastic tape, having the features of claim 1. With a laser beam is in the position in a fabric of plastic tape to cut, perforate or score with a defined penetration depth, although due to the at least partial superposition of the ribbons in the fabric, the thickness of the sheet material varies. Another advantage is that lasers are very low maintenance and almost wear-free. Preferably, the fabric is made of single or multi-layer plastic tapes of PP, PE, or PET, wherein the plastic tapes are stretched before weaving mostly to multiply their strength.

Durch das erfindungsgemäße Verfahren ist es - im Gegensatz zum Stand der Technik - möglich, die Abrisslinien als Perforationslinien oder Schwächungslinien oder eine Kombination aus Perforations- und Schwächungslinien auszubilden, wodurch eine hervorragende Anpassung der Abreißbarkeit an die zu verarbeitenden Bahnmaterialien geschaffen wird.The inventive method it is - in contrast to the prior art - possible to form the tear lines as perforation lines or lines of weakness or a combination of perforation and weakening lines, whereby an excellent adaptation of the tearable to be processed web materials is created.

Das Dokument DE 4122273 A1 offenbart ein Verfahren für Laserschneiden für kontinuierlich bewegte Streifen eines Bahn- oder Flachmaterials. Dabei werden mittels Laser durchgehende oder perforierte Transversal(teil)schnitte im Bahn- oder Flachmaterial erzeugt. Das Anbringen von Schwächungslinien ist nicht offenbart. Es ist auch nicht offenbart, dass die Bahnabschnitte durch Abreißen vom Bahnmaterial getrennt werden. Weiters enthält das Dokument keine Materialangabe bezüglich des Bahn- oder Flachmaterials. Aus der Zeichnung geht nur hervor, dass das Bahnmaterial einlagig ist.The document DE 4122273 A1 discloses a method for laser cutting for continuously moving strips of web or sheet. In this case, laser continuous or perforated transversal (partial) sections are produced in the web or flat material. The attachment of lines of weakness is not disclosed. It is also not disclosed that the web sections are separated by tearing from the web material. Furthermore, the document does not contain any material information regarding the web or flat material. From the drawing only shows that the web material is single-layered.

Die Erfindung ist hervorragend für Bahnmaterialien anwendbar, die ein Gewebe aus Kunststoffbändchen umfassen, das mit zumindest einer zusätzlichen Materialschicht verbunden ist, denn die Schneidleistung des Lasers lässt sich sehr gut an die unterschiedlichsten Materialkombinationen anpassen.The invention is eminently applicable to web materials comprising a web of plastic tape bonded to at least one additional layer of material, since the cutting performance of the laser can be very well adapted to a wide variety of material combinations.

In einer Ausführungsform eines Gewebes aus Kunststoffbändchen, das mit zumindest einer zusätzlichen Materialschicht versehen ist, ist die zusätzliche Materialschicht eine Kunststoffschicht, wie z.B. eine OPP-Folie, die mit dem Gewebe verbunden ist. In einer weiteren Ausführungsform ist die zusätzliche Materialschicht eine Beschichtung aus Kunststoffmaterial, die auf die Kunststoffbändchen des Gewebes aufgebracht ist. In wiederum einer anderen Ausführungsform ist das Bahnmaterial ein Verbundmaterial aus einem, optional beschichteten, Gewebe aus Kunststoffbändchen und zumindest einer weiteren Verbundkomponente, ausgewählt aus Kunststofffolie, Metallfolie, metallisierter Kunststofffolie, Vliesstoff (nonwoven), speziellen Haftschichten und/oder Papier. Bevorzugte Materialien umfassen ein- oder mehrschichtige Kunststoffbändchen aus PP, PE, oder PET, wobei die aus diesen Kunststoffbändchen hergestellten Geweben mit ein- oder mehrschichtiger Beschichtung aus PP, PE, oder speziellen Haftschichten versehen sein können. Die außen liegenden Einzelschichten eines solchen Verbundes können auch mit einem außen liegenden Druck oder Konterdruck versehen sein.In one embodiment of a fabric of plastic tape provided with at least one additional layer of material, the additional layer of material is a plastic layer, such as e.g. an OPP film that is bonded to the fabric. In a further embodiment, the additional material layer is a coating of plastic material applied to the plastic tapes of the fabric. In yet another embodiment, the web material is a composite material of an optionally coated web of plastic tape and at least one other composite component selected from plastic film, metal foil, metallized plastic film, nonwoven, special adhesive layers, and / or paper. Preferred materials include single or multi-layer plastic tapes made of PP, PE, or PET, wherein the fabrics produced from these plastic tapes can be provided with single or multi-layer coating of PP, PE, or special adhesive layers. The outer layers of such a composite can also be provided with an external pressure or counter pressure.

Ein besonderer Vorteil der Erfindung liegt darin, dass sie auch für schlauchförmiges Bahnmaterial anwendbar ist. Um die Möglichkeit zu haben die beiden aufeinander liegenden Lagen des Schlauches an verschiedenen Stellen zu perforieren und so eine gestaffelte Perforation direkt an einem Schlauch anzubringen, ist vorgesehen, das Bahnmaterial von beiden einander gegenüberliegenden Außenflächen einer Laserstrahlbearbeitung zu unterziehen.A particular advantage of the invention is that it is also applicable to tubular sheet material. In order to have the opportunity to perforate the two superimposed layers of the hose at different locations and so a staggered To attach perforation directly to a hose, it is provided to subject the web material of both opposite outer surfaces of a laser beam machining.

Selbstverständlich ist die Erfindung auch für flaches Bahnmaterial anwendbar.Of course, the invention is also applicable to flat sheet material.

In einer bevorzugten Ausgestaltung der Erfindung wird der Laserstrahl durch eine Scannereinheit entlang der vorgegebenen Abrisslinie geführt, wobei bei schlauchförmigem Bahnmaterial Laserquellen und Scannereinheiten an der Oberseite und an der Unterseite der Schlauchbahn angeordnet sein können. Durch die Ablenkung des Laserstrahls mit einem Scanner wird das Abfahren von nahezu beliebigen Konturen der Abrisslinie ermöglicht, während das Bahnmaterial unter dem Laser bewegt wird, wobei die Kontur softwaregesteuert sehr einfach an die Abmessungen der Verpackung angepasst werden kann.In a preferred embodiment of the invention, the laser beam is guided through a scanner unit along the predetermined tear line, wherein in tubular web material laser sources and scanner units can be arranged at the top and at the bottom of the tube web. By deflecting the laser beam with a scanner, it is possible to descend almost any contours of the tear line while the web material is moved under the laser, whereby the contour can be very easily adapted to the dimensions of the packaging by software control.

Um verschiedene Eindringtiefen oder Durchdringtiefen des Laserstrahls im Bahnmaterial zu realisieren ist in einer Ausführungsform der Erfindung vorgesehen, dass während des Führens des Laserstrahls entlang der vorgegebenen Abrisslinie die Laserenergie (genauer gesagt: die Energiedichte im Auftreffpunkt auf dem Bahnmaterial) gemäß den vorgesehenen Eindringtiefen in das Bahnmaterial verändert wird.In order to realize different penetration depths or penetration depths of the laser beam in the web material, it is provided in one embodiment of the invention that during the guiding of the laser beam along the predetermined tear line, the laser energy (more precisely: the energy density at the point of impact on the web material) according to the intended penetration depths into the web material is changed.

Die Erfindung ermöglicht das Herstellen der Abrisslinie während das Bahnmaterial kontinuierlich bewegt wird, indem der Laserstrahl so nachgeführt wird, dass die Längsbewegung des Bahnmaterials ausgeglichen wird, wobei optional die Laserenergie an den jeweiligen Abstand zwischen Laserquelle und Auftreffpunkt auf dem Bahnmaterial angepasst wird, um am Auftreffpunkt immer die gewünschte Laserenergie zur Verfügung zu stellen. Es ist möglich die Energiedichte im Auftreffpunkt bei sich aufweitendem Strahl konstant zu halten, indem die Laserleistung dem Abstand zwischen Laserquelle und Bahnmaterial angepasst wird.The invention enables the production of the tear line while continuously moving the web material by tracking the laser beam to compensate for the longitudinal movement of the web material, optionally adjusting the laser energy to the distance between the laser source and point of impact on the web material at the point of impact always to provide the required laser energy. It is possible to keep the energy density at the point of impact constant as the beam expands by adjusting the laser power to the distance between the laser source and the web material.

Um die Eindringtiefe des Laserstrahls in das Bahnmaterial zu steuern, kann weiters vorgesehen werden, dass die Leistung der Laserquelle in Abhängigkeit von der Relativgeschwindigkeit des Laserstrahls in Bezug auf das Bahnmaterial geregelt wird, oder dass die Relativgeschwindigkeit des Laserstrahls in Bezug auf das Bahnmaterial geregelt wird. Dadurch wird die vom Laserstrahl in das Bahnmaterial eingebrachte Energie pro Längeneinheit der Abrisslinie festgelegt.In order to control the depth of penetration of the laser beam into the web material, it may further be provided that the power of the laser source is controlled in dependence on the relative speed of the laser beam with respect to the web material, or that the relative speed of the laser beam is controlled with respect to the web material. As a result, the energy introduced by the laser beam into the web material is determined per unit length of the tear line.

Mit der Erfindung lassen sich weiters beliebige Bahnabschnitte herstellen, die einen gestuften Bahnendabschnitt erfordern, da durch den Laserstrahl problemlos gestufte Abrisslinien erzeugt werden können.With the invention can be further produce any track sections that require a stepped tail section, as easily graded tear lines can be generated by the laser beam.

Das erfindungsgemäße Verfahren zum Herstellen von Bahnabschnitten aus einem flexiblen Bahnmaterial eignet sich ausgezeichnet für den Einsatz bei einem Verfahren zum Herstellen von Verpackungsbehältern, insbesondere Seitenfaltenverpackungen, wobei nach dem Herstellen der Abrisslinie im Bahnmaterial mittels Laser die Bahnabschnitte vom Bahnmaterial abgerissen werden. Zur Erzeugung eines Bodens bzw. einer Deckfläche wird zumindest ein Endbereichs des Bahnabschnitts auf den Bahnabschnittskörper umgefaltet und der umgefaltete Endbereich am Bahnabschnittskörper durch Verkleben oder Verschweißen befestigt. Das Umfalten kann einmal oder mehrmals vorgenommen werden.The method according to the invention for producing web sections from a flexible web material is outstandingly suitable for use in a method for producing packaging containers, in particular gusseted packages, wherein the web sections are torn from the web material after the production of the tear line in the web material by means of a laser. To produce a bottom or a top surface, at least one end region of the web section is folded over onto the web section body and the folded-over end region is fastened to the web section body by gluing or welding. The folding can be done once or several times.

Bei Verwendung eines flachen Bahnmaterials werden die Bahnabschnitte vor dem Abreißen der Länge nach zu einem Schlauch geformt, so dass sich die Längsränder überlappen, die anschließend miteinander verbunden, insbesondere verklebt oder verschweißt werden, um eine Längsnaht zu erzeugen.When using a flat web material, the web sections are formed into a tube lengthwise prior to tearing, such that the longitudinal edges overlap, which are then bonded together, particularly glued or welded, to create a longitudinal seam.

Zur Herstellung von Seitenfaltenverpackungen, insbesondere Seitenfaltensäcken wird, vorzugsweise vor dem Abreißen der Bahnabschnitte vom Bahnmaterial, zumindest eine Längsfalte in den Bahnabschnitten ausgebildet.For the production of gusseted packages, in particular gusseted bags, at least one longitudinal fold in the web sections is formed, preferably before the web sections are torn off the web material.

Die Erfindung wird nun anhand von Ausführungsbeispielen unter Bezugnahme auf die Zeichnungen in nicht einschränkender Weise näher erläutert. In den Zeichnungen zeigen

  • Fig. 1 eine perspektivische Ansicht eines schlauchförmigen Bahnmaterials, in dem gemäß der Erfindung Abrisslinien angebracht werden;
  • Fig. 2 eine Draufsicht auf das erfindungsgemäß behandelte schlauchförmige Bahnmaterial;
  • Fig. 3 eine Draufsicht auf ein flaches Bahnmaterial, in dem gemäß der Erfindung Abrisslinien angebracht sind;
  • Figuren 4 bis 6 perspektivische Ansichten von in einem Bahnmaterial gemäß der Erfindung hergestellten Abrisslinien;
  • Fig. 7 die Anwendung des in Fig. 6 dargestellten Ritzens plus Perforierens für eine flache Bahn aus einem Verbund aus Kunststoffbändchengewebe und Folie;
  • Fig. 8 die Anwendung des in Fig. 4 dargestellten Perforierens für eine schlauchförmige Bahn aus einem Verbund aus Kunststoffbändchengewebe und Folie.
The invention will now be described by way of example with reference to the drawings in a non-limiting manner. In the drawings show
  • Fig. 1 a perspective view of a tubular sheet material, are applied in accordance with the invention tear lines;
  • Fig. 2 a plan view of the invention treated tubular web material;
  • Fig. 3 a plan view of a flat sheet material, in which are provided according to the invention tear lines;
  • FIGS. 4 to 6 perspective views of tear lines produced in a sheet material according to the invention;
  • Fig. 7 the application of in Fig. 6 shown scribing plus perforation for a flat web of a composite of plastic ribbon fabric and foil;
  • Fig. 8 the application of in Fig. 4 shown perforation for a tubular web of a composite of plastic ribbon fabric and foil.

Das erfindungsgemäße Verfahren zum Herstellen von Bahnabschnitten 2 aus einem flexiblen Bahnmaterial 1 wird nun zunächst unter Bezugnahme auf Fig. 1 erläutert. Das flexible Bahnmaterial wird durch herkömmliche Beförderungsmittel, z.B. nicht dargestellte Walzenpaare in Längsrichtung (Pfeil A) zu einer Perforierstation zugeführt. Das Bahnmaterial 1 ist in diesem Ausführungsbeispiel schlauchförmig, wobei es flach zusammengelegt ist, so dass eine obere (1a) und eine untere (1b) Materialbahn übereinander liegen. Das Bahnmaterial 1 umfasst ein Gewebe aus Kunststoffbändchen, die bevorzugt aus PP, PE, oder PET bestehen und zweckmäßig vor dem Weben verstreckt wurden. Die Kunststoffbändchen können ein- oder mehrschichtig ausgebildet sein. Das Gewebe kann mit zumindest einer zusätzlichen Materialschicht verbunden sein. In einer Variante ist die zusätzliche Materialschicht eine ein- oder mehrschichtige Kunststoffschicht, insbesondere aus PP, PE oder eine OPP-Folie, oder umfasst spezielle Haftschichten. In einer weiteren Variante ist die zusätzliche Materialschicht eine ein- oder mehrschichtige Beschichtung aus Kunststoffmaterial, die auf die Kunststoffbändchen des Gewebes aufgebracht ist. In wiederum einer anderen Variante ist das Bahnmaterial ein Verbundmaterial aus einem, optional beschichteten, Gewebe aus Kunststoffbändchen und zumindest einer weiteren Verbundkomponente, ausgewählt aus Kunststofffolie, Metallfolie, metallisierter Kunststofffolie, Vliesstoff (nonwoven), speziellen Haftschichten und/oder Papier. Die außen liegenden Einzelschichten können auch mit einem außen liegenden Druck oder Konterdruck versehen sein.The method according to the invention for producing web sections 2 from a flexible web material 1 will now be described first with reference to FIG Fig. 1 explained. The flexible web material is fed by conventional means of transport, for example roller pairs (not shown) in the longitudinal direction (arrow A) to a perforating station. The sheet material 1 is tubular in this embodiment, wherein it is folded flat, so that an upper (1a) and a lower (1b) material web are superimposed. The web material 1 comprises a fabric made of plastic tapes, which preferably consist of PP, PE, or PET and were expediently stretched before weaving. The plastic tapes can be formed one or more layers. The fabric may be connected to at least one additional layer of material. In one variant, the additional material layer is a single-layer or multi-layer plastic layer, in particular made of PP, PE or an OPP film, or comprises special adhesive layers. In a further variant, the additional material layer is a single-layer or multi-layer coating of plastic material, which is applied to the plastic tapes of the fabric. In yet another variant, the web material is a composite material of an optionally coated fabric of plastic tape and at least one other composite component selected from plastic film, metal foil, metallized plastic film, nonwoven fabric, special adhesive layers and / or paper. The outer layers can also be provided with an external pressure or counter pressure.

Die Perforierstation, der das Bahnmaterial 1 - zugeführt wird, umfasst zwei Laserschneideinheiten 7, jeweils mit einer Laserquelle 4 zur Erzeugung eines Laserstrahls 6 und einem Scanner 5 zur Ablenkung des Laserstrahls 6. Eine erste Laserschneideinheit 7 ist über dem schlauchförmigen Bahnmaterial 1 angeordnet, wobei ihr Laserstrahl auf die Außenfläche der oberen Materialbahn 1a gerichtet wird. Die zweite Laserschneideinheit 7 ist unter dem schlauchförmigen Bahnmaterial 1 angeordnet, wobei ihr Laserstrahl auf die Außenfläche der unteren Materialbahn 1b gerichtet wird. Die beiden Laserschneideinheiten 7 haben die Aufgabe, das Bahnmaterial 1 im Abstand der Länge L (siehe Fig. 2) von zu formenden Bahnabschnitten 2 mit Abrisslinien 3a, 3b zu versehen, die das Bahnmaterial 1 zwar schwächen, aber keine vollständige Trennung der Bahnabschnitte 2 vom Bahnmaterial 1 herbeiführen. Die im Bahnmaterial 1 erzeugten Abrisslinien 3a, 3b und Bahnabschnitte 2 sind in Fig. 2 in Draufsicht dargestellt.The perforating station, to which the web material 1 - is supplied, comprises two laser cutting units 7, each with a laser source 4 for generating a laser beam 6 and a scanner 5 for deflecting the laser beam 6. A first laser cutting unit 7 is arranged above the tubular web material 1, with its Laser beam is directed to the outer surface of the upper material web 1a. The second laser cutting unit 7 is disposed below the tubular sheet 1, with its laser beam being directed to the outer surface of the lower sheet 1b. The two laser cutting units 7 have the task of the web material 1 at a distance of length L (see Fig. 2 ) to be formed by forming web sections 2 with tear-off lines 3a, 3b, which indeed weaken the web material 1, but no complete separation of the web sections 2 from the web material 1 bring in. The tear lines 3a, 3b and track sections 2 produced in the web material 1 are in Fig. 2 shown in plan view.

Die beiden Laserschneideinheiten 7 arbeiten unabhängig voneinander, wobei die Energie des jeweiligen Laserstrahls 6 so eingestellt ist, dass er nur in der ihm zugeordneten Materialbahn 1a oder 1b eine Abrisslinie 3a, 3b einschneidet, die andere Materialbahn 1b oder 1a aber nicht beschädigt. Die Abrisslinien werden vom Laserstrahl 6 als Perforationslinien 3a-1 (siehe Fig. 4) oder Schwächungslinien 3a-2 (siehe Fig. 5) oder als eine Kombination aus Perforations- und Schwächungslinien 3a-3 (siehe Fig. 6) ausgebildet.The two laser cutting units 7 operate independently of each other, wherein the energy of the respective laser beam 6 is set so that it cuts a tear line 3a, 3b only in its associated web 1a or 1b, but not damage the other web 1b or 1a. The tear lines are from the laser beam 6 as perforation lines 3a-1 (see Fig. 4 ) or weakening lines 3a-2 (see Fig. 5 ) or as a combination of perforation and weakening lines 3a-3 (see Fig. 6 ) educated.

Nach der Ausbildung der Abrisslinien 3a, 3b können die Bahnabschnitte 2 in bekannter Weise vom Bahnmaterial 1 abgerissen und weiter verarbeitet werden.After the formation of the tear-off lines 3a, 3b, the web sections 2 can be torn off from the web material 1 in a known manner and further processed.

Die Abrisslinien 3a, 3b können unterschiedlichste Konturen aufweisen, insbesondere mehrfach gestuft sein. Der Laserstrahl 6 wird durch den Scanner 5 entlang der mittels Software vorgegebenen Kontur der Abrisslinie geführt, wobei diese Kontur einfach veränderbar ist und das erfindungsgemäße Verfahren somit große Variabilität aufweist. Insbesondere ist es durch die Erfindung auch möglich, die Energie des Laserstrahls zu steuern und zu verändern, während er entlang der vorgegebenen Abrisslinie geführt wird, um z.B. eine Kombination aus Perforations- und Schwächungslinien zu erzeugen, oder um die Energie des Laserstrahls trotz veränderlichem Abstand zwischen Laserquelle 4 und Auftreffpunkt des Laserstrahls 6 auf der Materialbahn 1a, 1b konstant zu halten. Es ist durch die Steuerung der Laserenergie auch möglich, Materialbahnen mit wechselnden Materialeigenschaften (Dicke, Zusammensetzung des Verbunds, etc.) zu perforieren.The tear-off lines 3a, 3b can have very different contours, in particular be multi-stepped. The laser beam 6 is guided by the scanner 5 along the predetermined contour of the tear-off line by means of software, wherein this contour is easily changeable and the method according to the invention thus has great variability. In particular, it is also possible by the invention to control and change the energy of the laser beam as it is guided along the predetermined tear line, e.g. to produce a combination of perforation and weakening lines, or to keep the energy of the laser beam constant despite varying distance between laser source 4 and point of impingement of the laser beam 6 on the material web 1a, 1b. It is also possible by the control of the laser energy to perforate material webs with changing material properties (thickness, composition of the composite, etc.).

Ein zusätzlicher Vorteil der Erfindung ist, dass das Bahnmaterial 1 kontinuierlich entlang der Richtung A weiterbewegt werden kann, während die Abrisslinien 3a, 3b durch den Laserstrahl 6 geschnitten werden. Dabei wird der Laserstrahl 6 der Bewegung des Bahnmaterials so nachgeführt, dass die Längsbewegung (A) des Bahnmaterials 1 ausgeglichen wird. Optional kann die Laserenergie an den jeweiligen Abstand zwischen Laserquelle 6 und Auftreffpunkt des Laserstrahls 6 auf dem Bahnmaterial 1 angepasst werden.An additional advantage of the invention is that the web material 1 can be continuously moved along the direction A, while the tear-off lines 3a, 3b are cut by the laser beam 6. In this case, the laser beam 6 of the movement of the web material is tracked so that the longitudinal movement (A) of the web material 1 is compensated. Optionally, the laser energy can be adapted to the respective distance between the laser source 6 and the point of impact of the laser beam 6 on the web material 1.

Die eingebrachte Energie pro Längeneinheit und damit die Eindringtiefe wird durch die Leistung der Laserquelle 4 und die Relativgeschwindigkeit des Laserstrahls 6 in Bezug auf das Bahnmaterial 1 festgelegt. Außer dem schlauchförmigen Bahnmaterial 1 können mittels dem erfindungsgemäßen Laserschneiden auch in einem flachen Bahnmaterial 11 Abrisslinien 13 ausgebildet werden, um Bahnabschnitte 12 zu erzeugen, wie in Fig. 3 in Draufsicht dargestellt ist. Bei flachem Bahnmaterial 11 wird nur eine Laserschneideinheit 7 benötigt. Es sei darauf hingewiesen, dass in Abhängigkeit von der Kontur der Abrisslinien 3a, 3b eventuell auch bei schlauchförmigem Bahnmaterial 1 mit einer Laserschneideeinheit 7 das Auslangen gefunden wird.The introduced energy per unit length and thus the penetration depth is determined by the power of the laser source 4 and the relative speed of the laser beam 6 with respect to the web material 1. In addition to the tubular web material 1, tear-off lines 13 can also be formed in a flat web material 11 by means of the laser cutting according to the invention in order to produce web sections 12, as in FIG Fig. 3 is shown in plan view. For flat sheet material 11, only one laser cutting unit 7 is required. It should be pointed out that, depending on the contour of the tear-off lines 3a, 3b, even with tubular sheet material 1 with a laser cutting unit 7, it may be the case that it is found.

Mithilfe des erfindungsgemäßen Verfahrens zum Herstellen von Bahnabschnitten 2, 12 aus einem flexiblen Bahnmaterial 1, 11 durch Laserschneiden ist es möglich Verpackungsbehälter herzustellen, indem zunächst die Bahnabschnitte 2, 12 durch Erzeugen der Abrisslinien 3a, 3b, 13 hergestellt werden, und anschließend die Bahnabschnitte 2, 12 vom Bahnmaterial 1, 11 abgerissen werden, danach zumindest ein Endbereich des Bahnabschnitts 2, 12 einmal oder mehrmals auf sich selbst bzw. den Bahnabschnittskörper umgefaltet wird und der umgefaltete Endbereich am Bahnabschnittskörper durch Verkleben oder Verschweißen befestigt wird. Sofern ein flaches Bahnmaterial 11 verwendet wird, werden die Bahnabschnitte 12 vor dem Abreißen der Länge nach zu einem Schlauch mit überlappenden Längsrändern geformt, die miteinander verbunden, insbesondere verklebt oder verschweißt werden.By means of the method according to the invention for producing web sections 2, 12 from a flexible web material 1, 11 by laser cutting, it is possible to produce packaging containers by first producing the web sections 2, 12 by generating the tear-off lines 3a, 3b, 13, and then the web sections 2 , 12 of the sheet material 1, 11, after which at least one end portion of the sheet portion 2, 12 is folded over one or more times onto itself or the sheet portion body and the folded-over end portion is secured to the sheet portion body by gluing or welding. If a flat web material 11 is used, the web portions 12 are formed before tearing the length of a tube with overlapping longitudinal edges, which are connected to each other, in particular glued or welded.

Weiters kann im hergestellten Materialschlauch, vorzugsweise vor dem Abreißen der Bahnabschnitte 2, 12 vom Bahnmaterial 1, 11, zumindest eine Längsfalte 8 in den Bahnabschnitten 2, 12 ausgebildet werden. Somit lassen sich Seitenfaltenverpackungen, insbesondere Seitenfaltensäcke herstellen.Furthermore, at least one longitudinal fold 8 can be formed in the web sections 2, 12 in the produced material hose, preferably before tearing off the web sections 2, 12 from the web material 1, 11. Thus, gusseted packages, especially gusseted bags can be produced.

Fig. 7 zeigt die Anwendung der in Fig. 6 beschriebenen Methode (Schwächung plus perforierte Abschnitte) für eine flache Bahn, die aus einem Verbund aus Kunststoffbändchengewebe 9 und einer Folie 10, z.B. Kunststofffolie, insbesondere OPP-Folie, oder Metallfolie oder metallisierte Kunststofffolie, besteht. Dabei trifft der Laserstrahl auf der Gewebeseite (die später die Innenseite der Verpackung bildet) auf, durchtrennt das Gewebe 9 größtenteils, perforiert aber die verbleibende Folie 10 nur an wenigen Stellen (vorzugsweise an den Stellen, die längs zur Bahnrichtung verlaufen). Dadurch kann erreicht werden, dass sich die Bahn später an den Perforationslinien sauber abreißen lässt. Fig. 7 shows the application of in Fig. 6 method described (weakening plus perforated sections) for a flat web, which consists of a composite of plastic ribbon fabric 9 and a film 10, for example plastic film, in particular OPP film, or metal foil or metallized plastic film. In this case, the laser beam impinges on the fabric side (which later forms the inside of the package), severing the fabric 9 for the most part, but only perforates the remaining film 10 in a few places (preferably at the locations which run longitudinally to the web direction). As a result, the web can be torn off cleanly at the perforation lines later.

Fig. 8 zeigt die Anwendung des in Fig. 4 dargestellten Perforierens für eine schlauchförmige Bahn aus einem Verbund aus Kunststoffbändchengewebe 9 und Folie 10. Dabei trifft der Laserstrahl auf der Folienseite (später die Außenseite einer daraus hergestellten Verpackung) auf und durchtrennt die Bahn abschnittsweise vollständige. Die verbleibenden Stege müssen schmal sein und werden eventuell auch, wie in Fig. 6 gezeigt, geschwächt (geritzt), damit sich die Schlauchabschnitte später sauber trennen lassen. Stellen, die längs zur Bahnrichtung verlaufen, müssen in jedem Fall vollständig durchtrennt werden und dürfen keine Stege aufweisen. Fig. 8 shows the application of in Fig. 4 illustrated perforation for a tubular web of a composite of plastic ribbon fabric 9 and film 10. In this case, the laser beam on the film side (later the outside of a produced therefrom packaging) on and cuts through the train sections in full. The remaining webs must be narrow and possibly also, as in Fig. 6 shown, weakened (scratched), so that the hose sections can be separated later clean. Points that run longitudinally to the web direction must be completely severed in any case and must have no webs.

Claims (19)

  1. A process for producing web sections (2, 12) from a flexible web material (1, 11), wherein the web material is provided with tear-off lines (3a, 3b; 13) at the distance of the length (L) of the web sections to be formed, which tear-off lines weaken the web material but do not bring about a complete separation of the web sections from the web material, and the web sections are separated from the web material along the tear-off lines by tearing, wherein the tear-off lines (3a, 3b; 13) are produced by laser beam processing, characterized in that the web material (1, 11) is a fabric made of small stretched plastic bands and that the laser beam (6) is guided through a scanner unit (5) along the predefined outline of the tear-off line (3a, 3b; 13) and, when the laser beam (6) is being guided along the predefined outline of the tear-off line, the laser energy of the laser beam (6) is altered according to the intended penetration depths into the web material (1, 11).
  2. A process according to claim 1, characterized in that the laser beam (6) is guided along the predefined outline of the tear-off line (3a, 3b; 13) while the web material (1, 11) is being moved in the longitudinal direction (A), the laser beam being guided along in such a way that the longitudinal motion of the web material is counterbalanced, whereby the laser energy is optionally adjusted to the respective distance between the laser source and the point of impact on the web material.
  3. A process according to claim 1 or 2, characterized in that the power of the laser source (4) is adjusted depending on the relative speed of the laser beam (6) with respect to the web material or that, for achieving a desired penetration depth, the relative speed of the laser beam (6) is adjusted with respect to the web material.
  4. A process according to any of the preceding claims, characterized in that the fabric made of small stretched plastic bands is linked to at least one additional material layer.
  5. A process according to claim 4, characterized in that the additional material layer is a plastic layer, in particular an OPP film, which is connected to the fabric.
  6. A process according to claim 4, characterized in that the additional material layer is a coating of plastic material which is applied to the small plastic bands of the fabric.
  7. A process according to any of claims 4 to 6, characterized in that the web material (1, 11) is a composite material made of a fabric of small plastic bands, which optionally is coated, and at least one further composite component selected from a plastic film, metal film, metallized plastic film, nonwoven fabric (nonwoven), specific adhesive layers and/or paper.
  8. A process according to any of the preceding claims, characterized in that the tear-off lines (3a, 3b; 13) are designed as perforation lines (3a-1) or weakening lines (3a-2) or as a combination (3a-3) of perforation and weakening lines.
  9. A process according to any of the preceding claims, characterized in that the tear-off line (3a, 3b; 13) is a stepped line.
  10. A process according to claim 9, characterized in that sections of the outline of the tear-off line (3a, 3b; 13) which extend along the direction of the web are cut through completely.
  11. A process according to any of the preceding claims, characterized in that the web material is a tubular web material (1).
  12. A process according to claim 11, characterized in that the web material (1) of the two opposing outer surfaces is subjected to laser beam processing.
  13. A process according to claim 11 or 12, characterized in that the tubular web (1) is a compound consisting of a fabric (9) of small stretched plastic bands and a film (10) and the laser beam (6) hits the film side of the compound and, in sections, cuts through the web completely.
  14. A process according to claim 13, characterized in that the ribs reminaing when the web is cut through in sections are weakened.
  15. A process according to any of claims 1 to 10, characterized in that the web material is a flat web material (11).
  16. A process according to claim 15, characterized in that the flat web material (11) is a compound consisting of a fabric of small plastic bands (9) and a film (10) and the laser beam (6) hits the fabric side of the compound and cuts through most of the fabric (9) but perforates the remaining film (10) only in a small number of locations, preferably in locations extending along the direction of the web.
  17. A process for producing packing containers, comprising the production of web sections (2, 12) from a flexible web material (1, 11) according to any of claims 1 to 16, tearing off the web sections (2, 12) from the web material, folding at least one end region of the web section over the web section body at least once and fastening the end region that has been folded over to the web section body by gluing or welding.
  18. A process for producing packing containers according to claim 17, characterized in that, if a flat web material (11) is used, the web sections (12) are longitudinally formed into a tube before they are torn off so that the longitudinal edges will overlap and will subsequently be connected, in particular glued or welded, to each other.
  19. A process for producing packing containers according to claim 17 or 18, characterized in that at least one longitudinal fold (8) is formed in the web sections, preferably before the web sections are torn off from the web material.
EP08700302A 2007-02-05 2008-02-04 Method for the production of web sections from flexible web material, and for the production of packaging containers Active EP2117821B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT0018807A AT505283B1 (en) 2007-02-05 2007-02-05 METHOD FOR PRODUCING RAILWAY INTERFACES FROM FLEXIBLE RAIL MATERIAL AND FOR PRODUCING PACKAGING CONTAINERS
PCT/AT2008/000036 WO2008095212A1 (en) 2007-02-05 2008-02-04 Method for the production of web sections from flexible web material, and for the production of packaging containers

Publications (2)

Publication Number Publication Date
EP2117821A1 EP2117821A1 (en) 2009-11-18
EP2117821B1 true EP2117821B1 (en) 2010-10-20

Family

ID=39345264

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08700302A Active EP2117821B1 (en) 2007-02-05 2008-02-04 Method for the production of web sections from flexible web material, and for the production of packaging containers

Country Status (15)

Country Link
US (2) US8241194B2 (en)
EP (1) EP2117821B1 (en)
JP (2) JP2010517807A (en)
KR (1) KR101324996B1 (en)
CN (1) CN101605651B (en)
AT (2) AT505283B1 (en)
BR (1) BRPI0808142B1 (en)
CA (1) CA2676462C (en)
DE (1) DE502008001584D1 (en)
EG (1) EG25209A (en)
ES (1) ES2354853T3 (en)
MX (1) MX2009007934A (en)
RU (1) RU2417150C1 (en)
WO (1) WO2008095212A1 (en)
ZA (1) ZA200905369B (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2507048A2 (en) * 2009-11-30 2012-10-10 Windmöller & Hölscher KG Fabric pinch sack-making machine, pinch sack and method for the production thereof
DE102013004430A1 (en) 2013-03-15 2014-02-06 B & B - Maf Gmbh & Co. Kg Method for producing tear line in plastic film for tearing plastic bag from roll of web, involves moving cutter on body at line section, and maintaining defined material thickness at line section for weakening web only at line section
EP3081374A1 (en) 2015-04-14 2016-10-19 Mondi Consumer Packaging Technologies GmbH Composite plastic tissue, packaging bag made of a composite plastic tissue and method for producing a packaging bag
EP3299312A1 (en) 2016-09-21 2018-03-28 Mondi AG Composite plastic tissue, packaging bag made of a composite plastic tissue and method for producing a plastic tissue composite
DE102022118886A1 (en) * 2022-07-27 2024-02-01 INTERLAS GmbH & Co. KG Method and device for producing a guided opening and/or tearing aid for paper or other fiber-based web goods

Families Citing this family (51)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2484433A1 (en) * 2003-10-09 2005-04-09 Coating Excellence International Laminated medical examination paper
US8227062B2 (en) 2007-02-01 2012-07-24 Coating Excellence International Llc Package having a printed laminate
US20110176753A1 (en) * 2007-02-01 2011-07-21 Michael Nowak Package having a printed laminate
US8486500B2 (en) * 2007-06-20 2013-07-16 Coating Excellence International Llc Flat bottom bag
DE102007054714B4 (en) * 2007-11-14 2016-09-22 Windmöller & Hölscher Kg Apparatus and method for making a bag of paper and paper bags
US20110019944A1 (en) * 2008-12-22 2011-01-27 Gary Sargin Method and system for folding and sealing bags
US8240915B2 (en) * 2008-12-22 2012-08-14 Coating Excellence International Llc Heat activated adhesives for bag closures
US8297840B2 (en) 2008-12-22 2012-10-30 Coating Excellence International Llc Heat activated adhesives for bag closures
US8241193B2 (en) 2008-12-22 2012-08-14 Coating Excellence International Llc Method and apparatus for bag closure and sealing
US8475046B2 (en) * 2008-12-22 2013-07-02 Coating Excellence International Llc Heat activated adhesives for bag closures
US20100293897A1 (en) * 2009-05-21 2010-11-25 Jansen Mark E Heat Activated Adhesives for Bag Closures
US8104961B2 (en) 2009-03-24 2012-01-31 Coating Excellence International Llc Bag and zipper assembly with secured side gussets
WO2010132250A2 (en) * 2009-05-15 2010-11-18 Coating Excellence International Llc Bag having sealable gussets
DE102009036556A1 (en) 2009-08-10 2011-02-17 Windmöller & Hölscher Kg A method and apparatus for making a sack or bag with nonwoven material, and a sack or bag comprising nonwoven material
US8535209B2 (en) 2010-04-22 2013-09-17 Coating Excellence International Llc Method and system for making a stepped end
DE102010029139A1 (en) * 2010-05-19 2011-11-24 Windmöller & Hölscher Kg Apparatus and method for producing hose sections for the manufacture of bags
ES2592530T3 (en) 2011-06-17 2016-11-30 Fiberweb, Llc Multi-layer vapor permeable article, substantially waterproof
WO2012177996A2 (en) 2011-06-23 2012-12-27 Fiberweb, Inc. Vapor permeable, substantially water impermeable multilayer article
US10369769B2 (en) 2011-06-23 2019-08-06 Fiberweb, Inc. Vapor-permeable, substantially water-impermeable multilayer article
US9765459B2 (en) 2011-06-24 2017-09-19 Fiberweb, Llc Vapor-permeable, substantially water-impermeable multilayer article
ITTO20110626A1 (en) * 2011-07-15 2013-01-16 M G Automazioni Di Lorenzo Bonariv A MACHINE FOR THE PRODUCTION OF PACKAGING BOXES
US20130102449A1 (en) * 2011-10-19 2013-04-25 Jim Graboski Perforation scoring on extruded film
US9969529B2 (en) 2012-02-13 2018-05-15 Polytex Fibers Corporation Easy open plastic bags
US9845184B2 (en) 2012-02-13 2017-12-19 Polytex Fibers Corporation Easy open plastic bags
US10661963B2 (en) 2014-04-04 2020-05-26 Polytex Fibers Corporation Peelable easy open plastic bags
US10562689B2 (en) 2012-02-13 2020-02-18 Polytex Fibers Corporation Woven plastic bags with features that reduce leakage, breakage and infestations
US12234076B2 (en) 2012-02-13 2025-02-25 Polytex Fibers Llc Peelable easy open plastic bags
US11459157B2 (en) 2012-02-13 2022-10-04 Polytex Fibers Llc Woven plastic bags with features that reduce leakage, breakage and infestations
US9669981B2 (en) 2012-02-13 2017-06-06 Polytex Fibers Corporation Easy open plastic bags
AT512806B1 (en) 2012-04-23 2014-01-15 Bsw Machinery Handels Gmbh Fabric for the production of sacks
EP2906415B1 (en) 2012-10-12 2020-03-18 Polytex Fibers Corporation Polymeric bag with easy access features attached to the bag without adhesives
US9663284B2 (en) 2012-11-20 2017-05-30 Polytex Fibers Corporation Methods of sealing plastic bags and plastic bags made by the methods
CA2898267A1 (en) 2013-01-22 2014-07-31 Polytex Fibers Corporation Easy access non-woven plastic bags
US9926106B2 (en) 2013-01-22 2018-03-27 Polytex Fibers Corporation Easy access woven plastic bags
MX385253B (en) 2014-04-04 2025-03-14 Polytex Fibers Llc WOVEN PLASTIC BAGS WITH FEATURES THAT REDUCE LEAKS, BREAKAGES AND INFESTATIONS.
US11472622B2 (en) 2014-04-04 2022-10-18 Polytex Fibers Llc Woven plastic bags with features that reduce leakage, breakage, and infestations
US11305927B2 (en) 2014-04-04 2022-04-19 Polytex Fibers Llc Easy open plastic bags
WO2016073819A1 (en) 2014-11-07 2016-05-12 The Procter & Gamble Company Process and apparatus for manufacturing an absorbent article using a laser source
EP3429524B1 (en) 2016-03-15 2019-11-20 The Procter and Gamble Company Methods and apparatuses for separating and positioning discrete articles
WO2017218571A1 (en) 2016-06-14 2017-12-21 Polytex Fibers Corporation Woven plastic bags with features that reduce leakage, breakage and infestations
CA3053182A1 (en) 2017-02-23 2018-08-30 Polytex Fibers Corporation Peelable easy open plastic bags
WO2018233853A1 (en) * 2017-06-23 2018-12-27 Perfo Tec B.V. APPARATUS AND METHOD FOR PACKAGING
JP6386681B1 (en) * 2018-01-10 2018-09-05 日本紙工株式会社 Manufacturing method of filter molded products
EP3774162A1 (en) * 2018-04-10 2021-02-17 Talens Systems, S.L.U. Apparatus and method for processing cardboard
ES2932898T3 (en) 2018-11-07 2023-01-27 Starlinger & Co Gmbh Web material from fabric and process for its production
CN110406172B (en) * 2019-08-30 2024-04-26 张卫 Offset punching machine
EP3838553A1 (en) * 2019-12-18 2021-06-23 Industrias Tecnológicas de Mecanización y Automatizaciòn, S.A. Container pre-cutting system
EP3988466A1 (en) 2020-10-22 2022-04-27 Polytex Fibers Corporation Woven plastic bags with features that reduce leakage, breakage, and infestations
US11813697B1 (en) * 2023-04-07 2023-11-14 Intraaction Corp Laser methods of fabrication of clothing
US11984695B1 (en) * 2023-04-07 2024-05-14 Khanh Le Laser transducer
US12420986B2 (en) 2023-06-15 2025-09-23 Polytex Fibers Llc Woven pouch bag and methods of making the same

Family Cites Families (46)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2855832A (en) * 1954-01-13 1958-10-14 W Inc Apparatus for making bags
US4008850A (en) * 1962-01-29 1977-02-22 St. Regis Paper Company Gusseted pinch bottom bag
US3445055A (en) * 1966-04-28 1969-05-20 Parker Pace Corp Reinforced laminated plastic materials
US3626143A (en) * 1969-04-02 1971-12-07 American Can Co Scoring of materials with laser energy
US3790744A (en) * 1971-07-19 1974-02-05 American Can Co Method of forming a line of weakness in a multilayer laminate
US3760153A (en) * 1972-02-16 1973-09-18 Du Pont Apparatus for perforating thermoplastic sheet materials with an electric arc
FR2241390A1 (en) * 1973-08-20 1975-03-21 Lindqvist Sven Welding plastic film without weakening it - by series of overlapping cuts just before the weld seams
SE391484B (en) * 1974-04-04 1977-02-21 S G A Lindqvist PROCEDURE FOR MANUFACTURE OF LONG MATERIALS PRODUCTS
US4118619A (en) * 1977-08-02 1978-10-03 R. J. Reynolds Tobacco Company Rotary beam chopper and scanning system
JPS5478282A (en) * 1977-12-05 1979-06-22 Showa Seitai Kougiyou Kk Method of making sack
US4439663A (en) * 1978-08-10 1984-03-27 Philip Morris Incorporated Method and system for laser perforation of sheet material
DE2842954C2 (en) * 1978-10-02 1985-01-24 Windmöller & Hölscher, 4540 Lengerich Method and device for producing sacks that are open on one side and have an inner sack made of thermoplastic plastic film and an outer sack made of a circular fabric made of stretched plastic tapes
US4549063A (en) * 1979-04-09 1985-10-22 Avery International Corporation Method for producing labels having discontinuous score lines in the backing
DE2918283C2 (en) * 1979-05-07 1983-04-21 Carl Baasel, Lasertechnik KG, 8000 München Device for substrate treatment with a rotating mirror or the like.
US4404452A (en) * 1979-06-08 1983-09-13 Philip Morris Incorporated Optical perforating apparatus and system
US4473432A (en) * 1983-02-04 1984-09-25 Harold Leader Dot heat stapling
JPS61235136A (en) * 1985-04-11 1986-10-20 大石産業株式会社 Perforation method of sheet for bag-making
EP0341739B1 (en) * 1988-05-13 1995-01-18 Pathold Investments Company Limited Perforated material
DE3888179T2 (en) * 1988-09-07 1994-06-30 Leeuwarder Papier Process for making notches in packaging material.
NL8901257A (en) * 1989-05-19 1990-12-17 Leeuwarder Papier METHOD FOR APPLYING WEIGHT LINES IN RESP. ENGRAVING OF PLASTIC MATERIAL, IN PARTICULAR PACKAGING MATERIAL.
IT1246830B (en) * 1990-07-10 1994-11-28 Gd Spa DEVICE FOR THE CROSS-CUTTING IN CUTTINGS OF A MOVING BELT OF CONTINUOUS MOTION ALONG A DETERMINED PATH.
US5229180A (en) * 1991-10-02 1993-07-20 American National Can Company Laser scored package
US5421805A (en) * 1993-10-01 1995-06-06 Bancroft Bag, Inc. Method and apparatus for producing handled bags
DE4401723A1 (en) 1994-01-21 1995-07-27 Windmoeller & Hoelscher Device for producing a multi-layer hose for bag production
DE19511393B4 (en) * 1995-03-28 2005-08-25 Carl Baasel Lasertechnik Gmbh Apparatus for substrate treatment, in particular for perforating paper
DE19537467C1 (en) * 1995-10-07 1997-02-27 Pkl Verpackungssysteme Gmbh Cutting, perforating or inscribing repeatable patterns on moving composite material
US5874157A (en) * 1996-04-02 1999-02-23 The Procter & Gamble Company Separable laminated paper product
US5760369A (en) * 1996-09-20 1998-06-02 Uniek, Inc. Method of laser cutting paper cards for use in paper sculpture
JP3737600B2 (en) * 1997-04-28 2006-01-18 大日本印刷株式会社 Package manufacturing equipment
US6080093A (en) * 1997-07-03 2000-06-27 Kenneth Fox Supply Company Apparatus for wicket-top converting of a cross-laminated synthetic resin fiber mesh bag
CH692980A5 (en) * 1999-01-21 2003-01-15 Alcan Tech & Man Ag Packaging.
JP4399908B2 (en) * 1999-07-30 2010-01-20 凸版印刷株式会社 Manufacturing method of liquid packaging bag with spout
US6290391B1 (en) * 2000-01-18 2001-09-18 Reynolds Consumer Products, Inc. Reclosable package having slider device and tamper-evident structure
JP2001287284A (en) * 2000-04-07 2001-10-16 Dainippon Printing Co Ltd Bag making machine with laser processing machine
DE10038104C2 (en) * 2000-08-04 2003-12-18 Sca Hygiene Prod Gmbh Separating and / or perforating device
US6688515B1 (en) * 2000-10-23 2004-02-10 Meadwestvaco Corporation Bagless container with reclosable fitment
US6609999B2 (en) * 2001-08-21 2003-08-26 Rex International Incorporated Perforation blade for forming a burst-resistant easy-open corner in a heavy duty bag
WO2003029109A2 (en) * 2001-09-29 2003-04-10 Eurea Verpackungs Gmbh & Co. Kg Method for the production of a flexible bulk-material container and bulk-material container produced according to said method
DE10154508A1 (en) * 2001-11-07 2003-05-22 Mlt Micro Laser Technology Gmb Device for substrate treatment using laser radiation
US6945922B2 (en) * 2001-11-30 2005-09-20 Kimberly-Clark Worldwide, Inc. System for cutting a moving web in the cross direction to form sheets of a given length at high web speeds
JP2003227062A (en) * 2002-01-31 2003-08-15 Toppan Printing Co Ltd Nonwoven fabric processed goods
US20040134166A1 (en) * 2003-01-10 2004-07-15 Steven Ausnit Method for dual manufacture of reclosable bags on HFVF machine
EP1651521A1 (en) * 2003-07-04 2006-05-03 CFS Weert B.V. Packaging machine
US7240408B2 (en) * 2004-01-14 2007-07-10 Icon Textile Laser Systems, Inc. Selectivity altering a fiber height in a pile fabric and apparatus
US7717620B2 (en) * 2004-06-11 2010-05-18 Sonoco Development, Inc. Flexible packaging structure with a built-in opening and reclose feature, and method for making same
US7311649B1 (en) * 2006-06-23 2007-12-25 Illinois Tool Works Inc. Sculpted perforated header for reclosable packages

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2507048A2 (en) * 2009-11-30 2012-10-10 Windmöller & Hölscher KG Fabric pinch sack-making machine, pinch sack and method for the production thereof
DE102013004430A1 (en) 2013-03-15 2014-02-06 B & B - Maf Gmbh & Co. Kg Method for producing tear line in plastic film for tearing plastic bag from roll of web, involves moving cutter on body at line section, and maintaining defined material thickness at line section for weakening web only at line section
DE102013004430B4 (en) * 2013-03-15 2015-07-16 B & B - Maf Gmbh & Co. Kg Method and device for producing a tear-off line in a web having a fabric and method for producing web sections from this web
EP3081374A1 (en) 2015-04-14 2016-10-19 Mondi Consumer Packaging Technologies GmbH Composite plastic tissue, packaging bag made of a composite plastic tissue and method for producing a packaging bag
DE102016106787A1 (en) 2015-04-14 2016-10-20 Mondi Consumer Packaging Technologies Gmbh Plastic fabric composite, packaging bags made of a plastic fabric composite and method for producing a packaging bag
EP3081374B1 (en) 2015-04-14 2017-06-28 Mondi AG Composite plastic tissue, packaging bag made of a composite plastic tissue and method for producing a packaging bag
EP3299312A1 (en) 2016-09-21 2018-03-28 Mondi AG Composite plastic tissue, packaging bag made of a composite plastic tissue and method for producing a plastic tissue composite
DE102022118886A1 (en) * 2022-07-27 2024-02-01 INTERLAS GmbH & Co. KG Method and device for producing a guided opening and/or tearing aid for paper or other fiber-based web goods

Also Published As

Publication number Publication date
WO2008095212A1 (en) 2008-08-14
US20120211537A1 (en) 2012-08-23
CN101605651B (en) 2011-06-08
RU2009133330A (en) 2011-03-20
DE502008001584D1 (en) 2010-12-02
BRPI0808142A2 (en) 2014-06-24
CA2676462C (en) 2015-04-14
EP2117821A1 (en) 2009-11-18
EG25209A (en) 2011-11-15
BRPI0808142B1 (en) 2019-01-22
MX2009007934A (en) 2009-08-07
US20100029455A1 (en) 2010-02-04
ES2354853T3 (en) 2011-03-18
US8241194B2 (en) 2012-08-14
ATE485159T1 (en) 2010-11-15
KR20090116734A (en) 2009-11-11
JP2010517807A (en) 2010-05-27
AT505283A4 (en) 2008-12-15
CA2676462A1 (en) 2008-08-14
AT505283B1 (en) 2008-12-15
JP2013075532A (en) 2013-04-25
JP5400234B2 (en) 2014-01-29
RU2417150C1 (en) 2011-04-27
KR101324996B1 (en) 2013-11-04
ZA200905369B (en) 2010-10-27
US8540612B2 (en) 2013-09-24
CN101605651A (en) 2009-12-16

Similar Documents

Publication Publication Date Title
EP2117821B1 (en) Method for the production of web sections from flexible web material, and for the production of packaging containers
DE60219688T2 (en) PACKING, FOR EXAMPLE BAG, WITH ORIENTED OPENING OPENING
EP2049327A1 (en) Method for the production of packaging bags having a reinforced base region and device for carrying out the method
EP2739455B1 (en) Method and device for producing, filling, and closing bags, and a bag
EP2455301B1 (en) Film laminate for producing bag packaging with integrated film handle and method for producing the laminate
DE102007054714B4 (en) Apparatus and method for making a bag of paper and paper bags
DE2536266C3 (en) Process for the production of multilayer material webs
DE9217023U1 (en) Packaging bags made of paper or plastic
DE4244363A1 (en) Method and device for producing padded mailers and padded mailers
DE102020200408A1 (en) Method and device for the production of individual pieces of tubing as well as pieces of tubing and sacks
DE3624311A1 (en) METHOD FOR PRODUCING BAGS, BAGS OR THE LIKE ITEMS FROM A THERMOPLASTIC PLASTIC FILM SHEET, BAGS AND BAGS AND PRODUCTION MACHINE
EP3441315B1 (en) Method and packaging system for producing containers
DE212009000003U1 (en) Easy-to-open packaging
EP4045419B1 (en) Bag, method and device for producing a bag
DE1479145C3 (en) Method and device for the production of bags with a partitioned reinforced hanger
EP3663080A1 (en) Device and method for manufacturing film bags
EP1510332B1 (en) Method of producing containers from a flexible material
DE102012106270A1 (en) Tear area manufacturing method for manufacturing strip-shaped tear area of product, particularly carton, involves forming tension element in strip-shaped area by coating through nozzle
EP0671337A1 (en) Envelope or mailing bag and process for producing such envelope
DE102018122805A1 (en) Method and device for perforating a flat tube consisting of a fabric composite and method and device for producing packaging containers
DE1018714B (en) Device for inserting paper sections u. Between the paper webs which are used for the production of paper bags and which are to be removed after being joined to form a layer of paper, and multi-layer paper sacks made on this device
DE2536304A1 (en) Process for the production of laminated webs of material with rigid edge strips.
DE4331427A1 (en) Process for producing flat bags or satchel bags

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20090730

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR

DAX Request for extension of the european patent (deleted)
GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

RIN1 Information on inventor provided before grant (corrected)

Inventor name: FUERST, HERBERT

Inventor name: SKOPEK, PETER

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REF Corresponds to:

Ref document number: 502008001584

Country of ref document: DE

Date of ref document: 20101202

Kind code of ref document: P

REG Reference to a national code

Ref country code: NL

Ref legal event code: VDEP

Effective date: 20101020

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Effective date: 20110308

LTIE Lt: invalidation of european patent or patent extension

Effective date: 20101020

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20101020

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110120

REG Reference to a national code

Ref country code: IE

Ref legal event code: FD4D

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20101020

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110220

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110221

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110120

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20101020

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20101020

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20101020

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20101020

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20101020

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110121

PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20101020

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20101020

PLAX Notice of opposition and request to file observation + time limit sent

Free format text: ORIGINAL CODE: EPIDOSNOBS2

26 Opposition filed

Opponent name: B&B - MAF GMBH & CO. KG

Effective date: 20110720

Opponent name: WINDMOELLER & HOELSCHER KG

Effective date: 20110720

BERE Be: lapsed

Owner name: STARLINGER & CO. -G. MBH

Effective date: 20110228

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20101020

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20101020

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20101020

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20101020

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20110228

REG Reference to a national code

Ref country code: DE

Ref legal event code: R026

Ref document number: 502008001584

Country of ref document: DE

Effective date: 20110720

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20110228

PLAF Information modified related to communication of a notice of opposition and request to file observations + time limit

Free format text: ORIGINAL CODE: EPIDOSCOBS2

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20101020

PLBB Reply of patent proprietor to notice(s) of opposition received

Free format text: ORIGINAL CODE: EPIDOSNOBS3

PLBP Opposition withdrawn

Free format text: ORIGINAL CODE: 0009264

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20120229

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20120229

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20110204

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20101020

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20101020

PLAY Examination report in opposition despatched + time limit

Free format text: ORIGINAL CODE: EPIDOSNORE2

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 9

PLBC Reply to examination report in opposition received

Free format text: ORIGINAL CODE: EPIDOSNORE3

PLCK Communication despatched that opposition was rejected

Free format text: ORIGINAL CODE: EPIDOSNREJ1

REG Reference to a national code

Ref country code: DE

Ref legal event code: R100

Ref document number: 502008001584

Country of ref document: DE

REG Reference to a national code

Ref country code: DE

Ref legal event code: R079

Ref document number: 502008001584

Country of ref document: DE

Free format text: PREVIOUS MAIN CLASS: B31B0019140000

Ipc: B31B0070140000

PLBN Opposition rejected

Free format text: ORIGINAL CODE: 0009273

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: OPPOSITION REJECTED

27O Opposition rejected

Effective date: 20160904

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 10

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 11

P01 Opt-out of the competence of the unified patent court (upc) registered

Effective date: 20230526

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20250218

Year of fee payment: 18

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20250318

Year of fee payment: 18

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 20250217

Year of fee payment: 18

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20250219

Year of fee payment: 18

Ref country code: CZ

Payment date: 20250123

Year of fee payment: 18

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20250228

Year of fee payment: 18

Ref country code: GB

Payment date: 20250220

Year of fee payment: 18

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: TR

Payment date: 20250128

Year of fee payment: 18